Separate PID file for draft-content-store
Separate PID file for draft-content-store

https://trello.com/c/9IjHVbeJ

This will allow content-store and draft-content-store to
be run side-by-side.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet